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Subject[PATCH v4 1/3] driver core: Provide device_match_acpi_handle() helper
We have a couple of users of this helper, make it available for them.

The prototype for the helper is specifically crafted in order to be
easily used with bus_find_device() call. That's why its location is
in the driver core rather than ACPI.

Signed-off-by: Andy Shevchenko <>
v4: amended changelog to clarify implementation details (Rafael)
drivers/base/core.c | 6 ++++++
include/linux/device/bus.h | 1 +
2 files changed, 7 insertions(+)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index b67ebe6a323c..fd034d742447 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -4838,6 +4838,12 @@ int device_match_acpi_dev(struct device *dev, const void *adev)

+int device_match_acpi_handle(struct device *dev, const void *handle)
+ return ACPI_HANDLE(dev) == handle;
int device_match_any(struct device *dev, const void *unused)
return 1;
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index 062777a45a74..a039ab809753 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -143,6 +143,7 @@ int device_match_of_node(struct device *dev, const void *np);
int device_match_fwnode(struct device *dev, const void *fwnode);
int device_match_devt(struct device *dev, const void *pdevt);
int device_match_acpi_dev(struct device *dev, const void *adev);
+int device_match_acpi_handle(struct device *dev, const void *handle);
int device_match_any(struct device *dev, const void *unused);

/* iterator helpers for buses */
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